.tu{
    width: 120px;
    float: left;
    margin-right: 20px;
    margin-top: 15px;
}
.zi{
    font-size: 20px;
    color: black;
    float: left;
    margin-right: 20px;
}
.zi1{
    margin-left: 20px;
}
.zi2{
    width: 100%;
    height: 40px;
    text-align: center;
    color: azure;
    background-color: cyan;
}
.tu1{
    width: 20px;
    margin-top: 10px;
}
.tu2{
    width: 25px;
}   
.tu3{
    width: 100%;
}
.tu4{
    width: 200px;
    float: left;
    margin-top: 20px;
}
.tu5{
    width: 430px;
}
.tu6{
    width: 430px;
    margin-top: 90px;
}
.tu7{
    width: 430px;
    margin-top: 90px;
}
.zong{
    width: 70%;
    float: left;
    margin-left: 80px;
}
.zong1{
    float: right;
    margin-right: 80px;
}
.zong2{
    width: 90%;
    height: 330px;
    margin-top: 30px;
    margin-left: auto;
    margin-right: auto;
    background-color: azure;
}
.zong3{
    width: 90%;
    height: auto;
    margin-left: 80px;
}
.zong4{
    width: 80%;
    height: 500px;
    margin-left: 80px;
}
.zong4 th{
    text-align: left;
}
.zong5{
    width: 100%;
    height: auto;
}
.con{
    float: left;
    width: 15%;
    margin-right: 30px;
}
.con1{
    float: left;
    width: 55%;
    margin-right: 30px;
}
.con2{
    width: 20%;
    float: left;
    margin-left: 20px;
}
.con3{
    width: 90%;
    height: 50px;
    float: left; 
    margin-left: 75px;
    background-color:#f8f8f8; 
}
.con4{
    width: 90%;
    float: left;
}
.con4 span{
    margin-right: 50px;
}
.con5{
    width: 100%;
    height: 100px;
    margin-top: 50px;
}
.con6{
    width: 30%;
    margin-left: 80px;
    margin-top: 90px;
    float: left;
}
.con6 li{
    margin-top: 20px;
    margin-left: -15px;
}
.con7{
    width: 30%;
    float: left;
    margin-left: 20px;
}
.con7 li{
    margin-top: 20px;
    margin-left: -15px;
}
.con8{
    width: 30%;
    float: left;
    margin-left: 20px;
}
.con8 li{
    margin-top: 20px;
    margin-left: -15px;
}
.zi3{
    float: left;
    font-size: 10px;
    width: 100%;
}